Answer:
Explanation:
arithmetic sequence formula is:
An=A1+(n-1)d
d represents the common difference, while A1 the first term
thus, the formula for this sequence is:
An=-3+(n-1)*(-5)
geometric sequence formula is:
An=A1*r^(n-1)
r represents common ratio, while A1 the first term
thus, the formula for this sequence is:
An=(4/3)*4^(n-1)